Show the steps to get the derivative function of -500/x by evaluating the limit. By limit, they are referring to the equation, lim h -> 0 (f(x + h)-f(x))/h

Answer 1

lim x>0 (-500/(x+h) - 500/x )/h
= lim -500(x-(x+h))/h(x*(x+h)
= lim -500 (-h/h(x*(x+h))
= lim +500 (1/x(x+h))
= 500/x^2

Your teacher is just too easy.